Falling in love with a closeted christian guy

I think that I am falling in love with someone. I don´t know if this someone is gay, but I´m pretty sure of it. My problem is that he is a christian. There is nothing wrong with that, however I personally am an atheist. Both of us are very similar, we kind of have the same humor, and we share a lot of interest. Even if I think he is gay, I don´t know for sure. Considering his faith, which is kind of conservative lutheran-ish, I´m not sure if he even would want a relationship. I really think he is an awesome person, and I feel he feels the same way about me. How do I tackle this situation? Do any of you guys have similar experiences?